Vacuum cleaner



FIG. 1 is front left perspective view of a vacuum cleaner showing my newdesign;

FIG. 2 is front elevational view thereof;

FIG. 3 is a front right side perspective view thereof;

FIG. 4 is a rear right side bottom perspective view thereof; and,

FIG. 5 is a rear left side perspective view thereof.

The surfaces or portions of the article not shown in the drawings ordescribed in the specification form no part of the claimed design.

The ornamental design for a vacuum cleaner, as shown and described.